US Bridges

I 70 Ml over Tennyson Street

Fair

Denver County, Colorado · 0.5 Mi. E. of HWY 95 · Structure no. E-16-DY

Built
1966
59 years old
Condition
Fair
inspected September 2023
Type
Tee Beam
Concrete Continuous
Length
151 ft
3 main spans
Daily traffic
90,000
2020 count
Owner
State
State Highway Agency

About this bridge

I 70 Ml over Tennyson Street is a concrete continuous tee beam carrying I 70 Ml over Tennyson Street in Denver County, Colorado. It was built in 1966, so it is 59 years old, older than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 90,000 vehicles a day, roughly 6% of them trucks, projected to reach 104,400 by 2040. The structure is 151 ft (46.1 m) long and 107 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesI 70 Ml
CrossesTennyson Street
Location0.5 Mi. E. of HWY 95
RouteInterstate 70A
Coordinates39.78346, -105.0442
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.6 US tons
Inventory rating36.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckOther
Main spans3
Design loadHS 20
Structure length151 ft (46.1 m)
Longest span67 ft (20.4 m)
Deck width107 ft (32.5 m)
Roadway width100 ft (30.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic90,000 (2020)
Projected traffic104,400 by 2040
Trucks6%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was I 70 Ml over Tennyson Street built?

It was built in 1966, making it 59 years old in 2025.

What condition is I 70 Ml over Tennyson Street in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2023.

How much traffic does I 70 Ml over Tennyson Street carry?

About 90,000 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is I 70 Ml over Tennyson Street?

The structure is 151 ft (46.1 m) long with a longest span of 67 ft (20.4 m) and a deck 107 ft wide.

Who owns I 70 Ml over Tennyson Street?

It is owned by the State Highway Agency.